Gappa

Gappa is a tool intended to help verifying and formally proving properties on numerical programs dealing with floating-point or fixed-point arithmetic. It has been used to write robust floating-point filters for CGAL and it is used to certify elementary functions in CRlibm. While Gappa is intended to be used directly, it can also act as a backend prover for the Why software verification plateform or as an automatic tactic for the Coq proof assistant.

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Licence: Gappa is governed by the CeCILL license under French law and abiding by the rules of distribution of free software. You can use, modify and/or redistribute the software under the terms of the CeCILL license as circulated by CEA, CNRS, and INRIA at the following URL http://www.cecill.info/. Gappa is also released under the terms of the GNU General Public License. The support libraries are released under the terms of the GNU Lesser General Public License.